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996 Forum
View Poll Results: Has YOUR car suffered an IMS failure
Yes, the IMS failed
9.84%
No issues with IMS
90.16%
Voters: 955. You may not vote on this poll

IMS bearing failure for your 996, Y or N? tell us (yr, 996 Mk1 or MK2 failure mode)

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Old 02-04-2013, 11:14 PM
  #31
cec3
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'99 C2 32k (16 easy, 16 track). All original.
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Old 02-05-2013, 12:37 AM
  #32
WalterRohrl
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Currently 67000 miles on chassis, 9000 miles on engine.

Engine replaced by dealer at 58000 miles due to leak traced to an out-of-round intermediate shaft bore (by .07mm).

Factory bearing in both engines.
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Old 02-05-2013, 08:20 AM
  #33
Hyper911
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2002 C4S 52k miles , no issues. IMS pro actively replaced at 50k, old one was fine. No issues.
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Old 02-05-2013, 08:50 AM
  #34
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No failure 73K miles.
Upgraded to LNE replacement as preventative.

Have 3K miles since.
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Old 02-05-2013, 09:34 AM
  #35
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37K miles and no issues...though I'm getting scared and will likely proactively replace with LNE shortly...
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Old 02-05-2013, 11:26 AM
  #36
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2003 C2 54k No failures or leaks. Ever. Proactively installed new RMS, LNE & new water pump about 45k. Original IMSB showed no significant wear.
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Old 02-05-2013, 11:38 AM
  #37
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2003 MKII C4S, 6-speed, 55K, no issues. Engine saved by DT40!
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Old 02-05-2013, 01:38 PM
  #38
Liceman
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'99 C2, now at 52k miles.
Had LN IMS installed proactively at 50k miles. No IMS issues before or since.
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Old 02-05-2013, 03:48 PM
  #39
Meares
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03 coupe 109,200 miles....original engine, all stock, VERY small weep just starting, replacing the bearing next week as PM...will update
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Old 02-05-2013, 04:44 PM
  #40
mdhogan5
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'02 C4 Cab, not quite 50K miles, no IMS issues. RMS replaced 4K ago (previous owner) who reported the mechanic said no need to replace IMS.
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Old 02-05-2013, 05:47 PM
  #41
AronG
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'99 Cab, 124k miles, no failure. Presume original engine/IMS. I owned the car '05 thru Dec '12 when it was totalled.
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Old 02-05-2013, 06:22 PM
  #42
drwdds
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Default IMS seems fine

63,000 on 2003 C2 Cab. Runs great, but plan on doing IMS when clutch is replaced.
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Old 02-05-2013, 10:28 PM
  #43
Thundertub
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'99 C2 6-sp coupe, 94,500 miles and still ticking on factory original IMSB and RMS and clutch. No leaks. No issues. Have owned this one since 2004. I bought it when it was five years old and had only 6,000 miles at that time.
Plenty of city, highway, and track time (recent long trip, and track weekend in the last two weeks).

Three previous 996's (1999 bought new, 2001 bought new, 2003 bought new). No IMSB issues with any of them.

I only voted once.
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Old 02-05-2013, 11:18 PM
  #44
Viper6
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2004 40th with 12k (4k by me in first year)... all original, hell she's barely broken in yet but I'm working on it!!
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Old 02-05-2013, 11:30 PM
  #45
CDLVancouver
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2002 c2
imsb replaced as pm at 105000km when clutch needed to be redone. original bearing was perfect.
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